DSEE
Biology · Paper 2B · 2007
3 questions 🇹🇿 NECTA ✓ MS
💰 Sit full exam
200 TZS
3-hour timed simulation · auto-graded · counts toward ranking
Pay & start exam →Questions (3)
Section A
1.
30 marks
Dissect specimen M to display its reproductive system.
- Draw a well-labelled diagram showing at least four parts of the reproductive system. (10 mk)
- Indicate the position of the kidneys and oviducts/testes. (5 mk)
- Identify the organ for gamete production. (2 mk)
- Which organ temporarily stores gametes? (2 mk)
- Name the organ used to transport gametes. (2 mk)
- What is the consequence of cutting the anterior abdominal vein? (3 mk)
- Why is water added during dissection? Give two points. (6 mk)
Upgrade to see model answers.
Section B
2.
10 marks
You are provided with solution Q.
- Perform food tests using the provided reagents. (0 mk)
- Complete the following table: (4 mk)
- State two food items that can give rise to such a solution. (2 mk)
- Name the first site of digestion, the juice involved, and the end product. (3 mk)
- Mention three roles of the identified food substances. (3 mk)
- State one negative health effect of lacking this food substance. (1 mk)
Upgrade to see model answers.
Section C
3.
10 marks
Observe specimens C, D and E.
- List three differences between specimen C and D based on observable features. (6 mk)
- Identify two uses of specimen D in daily life. (2 mk)
- Observe the lower surface of specimen E and name the structures seen. (1 mk)
- State the role of those structures. (1 mk)
- Draw specimen D and label five parts. (0 mk)
Upgrade to see model answers.
💡 Unlock all answers & explanations
Premium · 3000 TZS/mo